S 1503 - Agrigentum, silver, didrachms (410-406 BCE)

Die Studies Database

SILVER ID ^ᵖ: 10395

410 BCE - 406 BCE Silver 375 kg

Description

Obverse:	[[Obverse legend::[AKPAΓA-N-TI-NON]]] (Greek).Eagle standing left with wings spread, attacking a coiled serpent, above, ΣΤΡΑ.
Reverse:	Crab, above, vine leaf, below, wreckfish to left

Mint and issuing power

Mint:

Agrigentum

Ancient region:

Sicily

Modern country: Italy

Authority:

Chronology

From

410 BCE

to

406 BCE

Period: Classical 480-323 BC

Physical description

Metal:

Silver

Median weight in grams

8.60

Denomination:

didrachm

Standard:

Attic

Image

]]S 1503 - Agrigentum, silver, didrachms (410-406 BCE).jpg [1]

References

Die study reference:	"[[Die study reference" contains a listed "[" character as part of the property label and has therefore been classified as invalid.]]1Westermark 2018, p. 201-202, n° 601-603
Coin series reference:

Obverse dies distribution

Frequency ᵖ	Number of obverses ᵖ (o)	% (o)	Number of coins (n)	% (n)	Die name
1	1	50	1	9.09	2
10	1	50	10	90.91	1
Total	2 of 2	100	11 of 11	100

Reverse dies distribution

no distribution is available

Quantification

Number of obverses ᵖ (o)	2	Number of singletons (o1) ᵖ	1
Number of reverse dies (r)	1	Number of coins (n)	11
Coins per obverse die (n/o)	5.5	Coins per reverse die (n/r)	11
Reverse per obverse ratio (r/o)	0.5	Percentage of singletons (o1) ᵖ	50 %
Original number of dies (O) (Carter 1983 formula) ᵖ	2.18	Coins struck if 20,000 as average productivity per die ᵖ	43,600
Original number of dies (O) (Esty 2011 formula) ᵖ (O)	2.44	Survival rate if 20,000 as average productivity per die ᵖ	0.00025
Coverage (o = % of O) (Esty 1984 formula) ᵖ (o = % of O)	90.91%	Die productivity if survival rate 1/2,000 ᵖ	10,091.74
Weight of silver (in kg) if 20,000 coins per die (O = Carter formula) ᵖ	375 kg <br /> 375 kg	Die productivity if survival rate 1/5,000 ᵖ	25,229.36

Remarks